Heat-dissipating base

ABSTRACT

A heat-dissipating base includes a main body. The main body has a basic portion. Four corners of the basic portion are respectively connected to a first extending arm, a second extending arm, a third extending arm and a fourth extending arm. Both sides of the first, second, third, and fourth extending arms are respectively provided with a first bending portion, a second bending portion, a third bending portion and a fourth bending portion. An end of the first, second, third, and fourth extending arms opposite to the basic portion is respectively formed with at least one positioning hole. The first, second, third and fourth bending portions are configured to increase the structural strength of the first, second, third and fourth extending arms respectively.

BACKGROUND OF THE INVENTION

1. Field of the Invention

The present invention relates to a heat-dissipating base, and in particular to a heat-dissipating base in which reinforcing means are provided by bending both sides of extending arms thereof.

2. Description of Prior Art

Currently, electronic apparatuses or electronic devices are provided with electronic elements. These electronic elements generate a great number of heat during their operations, and thus a heat-dissipating unit has to be provided to dissipate the heat generated by the electronic elements. The common heat-dissipating unit may be configured as a heat sink, a heat-dissipating fin set, a heat pipe, a heat-dissipating plate, a vapor chamber or the like. However, various kinds of electronic elements have different dimensions, so that a desired electronic element may not be assembled with the aforesaid heat-dissipating unit directly. Thus, an additional base has to be first assembled with the heat-dissipating unit, and then the additional base is combined with the desired electronic element, so that the heat generated by the desired electronic element can be conducted to the base and then dissipated by the heat-dissipating unit. Usually, the combination of the base and the desired electronic element has to be fixed to a proper position. To this end, four corners of the base are provided with extending arms. Distal ends of the extending arms are each provided with a through-hole respectively. After fixing elements such as screws pass through the though-holes respectively, the fixing elements can anchor the base onto a substrate on which the desired electronic element is inserted.

The conventional base is made by punching a plate material, so that the extending arms are made elongate to have a poor strength. Thus, when the fixing elements pass through the through-holes of the extending arms respectively for fixation, the extending arms may suffer deformation due to external forces, which makes the base to become a flaw product, which decreases the yield. Further, the assembly of the flaw base with other parts becomes more difficult, so that the production cost is increased.

SUMMARY OF THE INVENTION

In order to solve the above problems, an objective of the present invention is to provide a heat-dissipating base, which has an improved structural strength.

In order to achieve the above objective, the present invention is to provide a heat-dissipating base, which includes a main body.

The main body has a basic portion. Four corners of the basic portion are respectively connected to a first extending arm, a second extending arm, a third extending arm and a fourth extending arm. Both sides of the first, second, third, and fourth extending arms are respectively provided with a first bending portion, a second bending portion, a third bending portion and a fourth bending portion. An end of the first, second, third, and fourth extending arms opposite to the basic portion is respectively formed with at least one positioning hole.

According to the present invention, the structural strength of the extending arms of the heat-dissipating base can be increased greatly, so that the possibility of deformation of the extending arms caused by bending stresses can be reduced.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is an exploded perspective view showing the heat-dissipating base according to a first embodiment of the present invention;

FIG. 2 is an assembled perspective view showing the heat-dissipating base according to the first embodiment of the present invention; and

FIG. 3 is an exploded perspective view showing the heat-dissipating base according to a second embodiment of the present invention.

DETAILED DESCRIPTION OF THE INVENTION

The above objectives and structural and functional features of the present invention will be described in more detail with reference to preferred embodiment thereof shown in the accompanying drawings

Please refer to FIGS. 1 and 2, which are the exploded perspective view and the assembled perspective view respectively showing the heat-dissipating base according to the first embodiment of the present invention. The heat-dissipating base of the present invention includes a main body 1.

The main body 1 has a basic portion 1 a. Four corners of the basic portion 1 a are connected to a first extending arm 11, a second extending arm 12, a third extending arm 13, and a fourth extending arm 14 respectively. Both sides of the first, second, third fourth extending arms 11, 12, 13, 14 are respectively provided with a first bending portion 111, a second bending portion 121, a third bending portion 131 and a fourth bending portion 141. An end of the first, second, third, and fourth extending arms 11, 12, 13, 14 opposite to the basic portion la is formed with at least one positioning hole 19 respectively.

The four corners of the basic portion 1 a of the main body 1 further have a first connecting end 15, a second connecting end 16, a third connecting end 17, and a fourth connecting end 18. The first, second, third and fourth extending arms 11, 12, 13, 14 are connected to the first, second, third and fourth connecting ends 15, 16, 17, 18 respectively.

The first, second, third and fourth bending portions 111, 121, 131, 141 are respectively formed by inwardly bending two long sides of the first, second, third and fourth extending arms 11, 12, 13, 14.

The first bending portion 111 further has a first folded edge 1111 and a second folded edge 1112 respectively provided on both sides of the first extending arm 11. The second bending portion 121 further has a third folded edge 1211 and a fourth folded edge 1212 respectively provided on both sides of the second extending arm 12. The third bending portion 131 further has a fifth folded edge 1311 and a sixth folded edge 1312 respectively provided on both sides of the third extending arm 13. The fourth bending portion 141 further has a seventh folded edge 1411 and an eighth folded edge 1412 respectively provided on both sides of the fourth extending arm 14.

Please refer to FIG. 3, which is an exploded perspective view showing the heat-dissipating base according to the second embodiment of the present invention. The second embodiment is substantially the same as the first embodiment, and thus the same description is omitted for simplicity. The difference between the second embodiment and the first embodiment lies in that: the first connecting end 15 further has a first fixing portion 151, the second connecting end 16 further has a second fixing portion 161, the third connecting end 17 further has a third fixing portion 171, and the fourth connecting end 18 further has a fourth fixing portion 181.

The first extending arm 11 further has a first hole 1113 for allowing the first fixing portion 151 to be fixed therein. The second extending arm 12 further has a second hole 1213 for allowing the second fixing portion 161 to be fixed therein. The third extending arm 13 further has a third hole 1313 for allowing the third fixing portion 171 to be fixed therein. The fourth extending arm 14 further has a fourth hole 1413 for allowing the fourth fixing portion 181 to be fixed therein. The first, second, third and fourth fixing portions 151, 161, 171, 181 are embodied as a protrusion respectively in the present embodiment, but they are not limited to this form only.

The first, second, third and fourth holes 1113, 1213, 1313, 1413 can be respectively assembled with the first, second, third and fourth fixing portions 151, 161, 171, 181. In this way, the stability in combining the first, second, third and fourth extending arms 11, 12, 13, 14 with the main body 1 can be enhanced.

According to the present invention, the first, second, third and fourth extending arms 11, 12, 13, 14 of the main body 1 each has an increased strength, so that the first, second, third and fourth extending arms 11, 12, 13, 14 can be prevented from suffering damage due to bending stresses caused by external forces. Further, since these extending arms have larger strength, the degree of tightness between the main body 1 and a heat source is increased, whereby thermal resistance can be reduced. 

What is claimed is:
 1. A heat-dissipating base, including: a main body having a basic portion, four corners of the basic portion being respectively connected to a first extending arm, a second extending arm, a third extending arm and a fourth extending arm; both sides of the first, second, third, and fourth extending arms being respectively provided with a first bending portion, a second bending portion, a third bending portion and a fourth bending portion; an end of the first, second, third, and fourth extending arms opposite to the basic portion being respectively formed with at least one positioning hole.
 2. The heat-dissipating base according to claim 1, wherein the first, second, third, and fourth bending portions are respectively provided on two long sides of the first, second, third, and fourth extending arms.
 3. The heat-dissipating base according to claim 1, wherein the four corners of the basic portion of the main body further have a first connecting end, a second connecting end, a third connecting end, and a fourth connecting end; the first, second, third, and fourth extending arms are respectively connected to the first, second, third, and fourth connecting ends.
 4. The heat-dissipating base according to claim 1, wherein the first bending portion further has a first folded edge and a second folded edge, the first folded edge and the second folded edge are provided on both sides of the first extending arm respectively.
 5. The heat-dissipating base according to claim 1, wherein the second bending portion further has a third folded edge and a fourth folded edge, the third folded edge and the fourth folded edge are provided on both sides of the second extending arm respectively.
 6. The heat-dissipating base according to claim 1, wherein the third bending portion further has a fifth folded edge and a sixth folded edge, the fifth folded edge and the sixth folded edge are provided on both sides of the third extending arm respectively.
 7. The heat-dissipating base according to claim 1, wherein the fourth bending portion further has a seventh folded edge and an eighth folded edge, the seventh folded edge and the eighth folded edge are provided on both sides of the fourth extending arm respectively.
 8. The heat-dissipating base according to claim 3, wherein the first connecting end further has a first fixing portion, the second connecting end further has a second fixing portion, the third connecting end further has a third fixing portion, the fourth connecting end further has a fourth fixing portion, the first extending arm further has a first hole for allowing the first fixing portion to be fixed therein, the second extending arm further has a second hole for allowing the second fixing portion to be fixed therein, the third extending arm further has a third hole for allowing the third fixing portion to be fixed therein, the fourth extending arm further has a fourth hole for allowing the fourth fixing portion to be fixed therein; the first fixing portion, the second fixing portion, the third fixing portion and the fourth fixing portion are formed into a protrusion respectively. 